MSP430控制数码管的编程实例

火辣西米秀

MSP430控制数码管的编程实例 [复制链接]

#include<msp430f149.h>
 
typedef unsigned char uchar;
 
#define wei_h P5OUT |= BIT5
#define wei_l P5OUT &= BIT5
#define duan_l P6OUT &= ~BIT6
#define duan_h P6OUT |= BIT6
 
uchar table[16] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
uchar num = 0;
 
void delay(int z)
{
  int i,j;
  for(i=z;i>0;i--)
    for(j=112;j>0;j--);
}
 
void display(uchar dat)
{
  P4OUT = table[num];
  duan_h;
  duan_l;
  P4OUT = 0x00;
  wei_h;
  wei_l;
}
 
void main( void )
{
  P1DIR = 0XFF;P1OUT = 0XFF;
  P2DIR = 0XFF;P2OUT = 0XFF;
  P3DIR = 0XFF;P3OUT = 0XFF;
  P4DIR = 0XFF;P4OUT = 0XFF;
  P5DIR = 0XFF;P5OUT = 0XFF;
  P6DIR = 0XFF;P6OUT = 0XFF;
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  
  while(1)
  {
    for(num=0;num<16;num++)
    {
      display(num);
      delay(500);
    }
  }
 
}